function fp() {
    var e = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz".split("")
        , t = e.length
        , n = Date.now().toString(36)
        , r = [];
    r[8] = r[13] = r[18] = r[23] = "_",
        r[14] = "4";
    for (var o = 0, i = void 0; o < 36; o++)
        r[o] || (i = 0 | Math.random() * t,
            r[o] = e[19 == o ? 3 & i | 8 : i]);
    return "verify_" + n + "_" + r.join("")
}
// console.log(fp())
